Bought a 1070 Dodge 440R/T a few years back, and car would go dead and owner said "just beat the dash a few times and it'll start right back up!!) As I wasn't too happy with that arrangement, I went hunting and it was the Amp gage. Had white powdery corrosion inside/outside, Replaced it with a under the dash oil/amp gage set-up and life was fine. Good luck.